A322752 Number of "funny trees" on n nodes.

0, 2, 3, 9, 30, 110, 423

Offset

1,2

Comments

For precise definition see Example 15.3.7 of Bona (2015).

References

Miklos Bona, editor, Handbook of Enumerative Combinatorics, CRC Press, 2015, page 1002.

Links

Table of n, a(n) for n=1..7.

Crossrefs

Sequence in context: A275165 A073950 A281270 * A277345 A259943 A296263

Adjacent sequences: A322749 A322750 A322751 * A322753 A322754 A322755

Keyword

nonn,more

Author

N. J. A. Sloane, Dec 25 2018

Status

approved